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	<title>Main Topic</title>
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<span style="font-family: Verdana; font-size: 23.52pt">Unimplemented Elements and Attributes</span> 
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  <li class="susan">spatialReferenceFrame</li>
  <li class="susan">interfaces</li>
  <li class="susan">sml:location</li>       
  <li class="susan">sml:DataSource</li>
  <li class="susan">swe:Envelope</li>
  <li class="susan">swe:GeoLocationArea</li>
  <li class="susan">swe:NormalizedCurve</li>
  <li class="susan">swe:Position</li>
  <li class="susan">swe:Curve</li>  
  <li class="susan">swe:SquareMatrix</li>
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<p>&nbsp;</p>
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